The trend:

It’s one of life’s trickiest dilemmas: you’ve got a drawer full of rainbow polishes and only 10 tiny fingernails to get arty on (well, 20 if you fancy jazzing up those toes, too). Picking one shade is like trying to decide between watching repeats of The OC or Gossip Girl: you want both, you deserve both. Luckily, one of this year’s biggest nail trends, colour-blocking, means you can have everything you want (except a Dan Humphrey x Seth Cohen sandwich, sorry). Get twice as much colour by teaming a cute base coat with a clashing geometric overlay.